AEVs JL Jack Base provides 3-1/2 inches of additional lift height to the stock Wranglers scissor jack allowing tires of up to 37 to be changed with ease and stability. Many people dont realize that the stock jack wont work to change larger tires until its too late, leaving them stranded on the side of the road or even worse, on the trail. The JL Jack Base has a large 7.5 x 10.5 footprint to provide better stability in off-road and soft soil conditions when using the factory jack or even a Hi-Lift jack. It can also double as a wheel chock in order to prevent a disabled vehicle or trailer from rolling. The JL Jack Base fits neatly into the JLs rear floor compartment when not in use, also includes molded-in nutserts to attached directly to a Hi-Lift jack. If your Wrangler doesnt have a rear storage compartment or you want an alternative mounting location, AEV also offers an optional Under Dash Mounting Kit. This Mounting Kit allows your Jack Base to conveniently mount under the dashboard on the passenger side of LHD models.